Aren't mothers allowed to talk about sex?

I don’t know if you’ve noticed, but there’s some stuff Miranda Kerr wants you to know.

She’s single. She’s dating. And she’s very, very sexy.

Every time I’ve launched a browser this week I’ve been welcomed by a naked Miranda, all hand-bra and come-hither eyes.

And she’s got a lot to say. About sex. And how much she likes it.

She likes girls, but she likes boys more:

“I appreciate both men and women. I love the female body and truly appreciate the female form.”

“I definitely need a man in the bedroom, however — a nice strong chest to lie on. Still, I want to explore. Never say never.”

She’s definitely up for feedback:

“I always ask for a critique on my performance. I always want to better myself in every way. The older I get, the more confident I am about asking for things I enjoy.”

She’s a member of the mile-high club:

“Let’s put it this way, I’ve had an orgasm in the air before. Alone. And together.”

But she’s not easy, people:

“Orlando and I always had great chemistry. One-night stands aren’t my thing. I made Orlando wait for six months until I even kissed him.”

Okay. I think I get it. Miranda Kerr is really, really sexy.

There are many reasons why Miranda’s interview has caught people’s attention. Like, sex. But not everyone is applauding her new-found liberation from having to sleep with a ridiculously handsome movie star every night.

The funny and fresh Jane Hall, for example, who earned a few column inches this week by suggesting it was embarrassing for Miranda to be banging (sorry) on about sex so much when she’s the mother of a child.

“Sorry Miranda, you’ve repulsed me,’ said Jane on her  Mix 101.1 Melbourne breakfast show yesterday. “Shut up, you’re only a young girl, shut up. And you’re someone’s mother.”

It’s hard not to agree with Jane that Miranda has deliberately tottered far into TMI territory (not to mention TTH – Trying Too Hard). But is this statement really any more irritating because it was said by a mother?

“One thing I’ve noticed is now that I’m having less sex my body isn’t as toned. The more sex I have, the more defined my arms and stomach get.”

I don’t think so. That quote would be annoying if it was uttered by a baby seal.

The thing is, it's Miranda Kerr's business to be sexy. And it's in her interests to make sure that no-one puts her in the dreaded 'mumsy' basket, so that she can keep selling us underwear and cosmetics that make us feel, even fleetingly, as sexy as she.

But please, won't somebody think of the children?

As any actual human-being knows, being aware that your parents are sexual creatures is one of the most excruciating revelations this cruel world has in store. But last time I checked, Flynn Kerr-Bloom couldn't read magazines. It is true though, that in 12 years time, Flynn will be innocently trawling the Net for some soft core titillation and will get a nasty shock.

Which is exactly what happened to Pamela Anderson's sons. Spare a thought for Dylan and Brandon Lee, now 16 and 17, who have to live in a virtual world where their parents' 'honeymoon tape' is the gold standard by which all other celebrity sexscapades are judged.

"They know about it (the sex tape)," says Pammy.  "They know about everything. Stupid Internet. I don’t know why everyone is so impressed with it."

It's also what must happen almost daily to Madonna's kids, is certainly the fate that awaits North West, and even Blue Ivy, who one day will be thrilled to find this little video in the family archive.

But no matter how you feel about these cliché-ridden examples of female sexuality, of course these mums have a right to make them. And their children have a right to be absolutely horrified by it when the time comes.

Sex got mothers into the mess they're in in the first place. And isn't it the God-given-right of every mum to embarrass and humiliate their child as they see fit (my mum certainly thought so, with all that impromptu public dancing). So why must sex be off-limits for mums?

Mind you, Miranda, it really might be an idea to put some clothes back on. Because pneumonia really messes with mothering.

What do you think? Do mothers have a responsibility to keep it clean?